It sounds like you’re hinting at a warning, but as it stands it’s too vague to be meaningful.
If you’re concerned about supermarkets, there are some real, grounded things people should be aware of—like how meat can be pre-packaged far in advance, how labels (e.g., “organic” or “fresh”) can be loosely interpreted, or how supply chains sometimes obscure where products actually come from.
But if this is leading into a specific claim (like “they’re selling you X instead of Y”), it’s important to be careful—there’s a lot of misinformation out there about food sourcing that can sound alarming but isn’t actually true.
If you want, finish the thought or tell me what you’ve heard, and I’ll help you sort out what’s accurate and what’s not.